Carbureter.



C. D. SMITH.

r AasuRmEn. y

` y APFLICATION FILED lULY 3.1915- 1,275,620. y Patented Aug. 13. 191si' 'w 29 5 y o Z5 5 Y liu.' .1.

54 f3.5 ZZ l l0 n n 54 IZ l? 5 16-% 17 6 E E i 1419. 14

Charles lL/Szmlh lto the engine at all speeds.

UNITED STATES PATENT (onirica CHARLES I). SMITH. F DAYTON, OHIO,.ASSIGNOR Tp THE F111 M GF MQBNEIB, ANI) SMITH, OI" DAYTON. OHIG. ACOPAETNERSHIP CONSISTING OF LOUIS MOB/NEB AND CHARLES n. SMITH.

CARBURETER.

Specification of Letters Patent.

Application filed July 3. 1916. Serial N0. 107.239.

lie il linovvn that l. (ananas D. SMITH, a citizen oli the linitvdStates. residing at Dayton. in the rountv oi' lifontgoniery and Staticot' (lhio. have invented certain new and uselul'iuilirovcuients inVariiureters. of which the following;1 is u specilication. referenceheilig' had therein to the. accompanying drawing.

This invention relate to cariiureters and ,is deaigi-wd morepartirularly for nee in connection with automobile engines. altliioughits uae is not limited lo yauch engines. Much. diliiculi'y has been,experienced in providing aI carburetor which iviii furnish n mixture otetheproper riclinessiin the propel' quan.- tities at all iihcede ot.` theengine. the carburetor is Het to provide a proper mixture for lowspeeda, an increase in the speed of thc yengine causes a larger propor--tion of gasolene to lic drawn through the nozzle. thus producing'aricher mixture..

lt .hat` heen proposed to overcome this ditli culty 'by providing asupplemental air opening' which will be controlled lay a valve... whichgrill open onlyY when the speed ot tlie` engine becomes such :la to tendto enrich the mixture delivered by the main feeding def vico. ThisSupplement-.rl device may feed air alone, to reduce the Suction onthemain feedingdevice as well as to dilute the mixture. o1' it may alsofeed an additional quann tityof gasolene furthe higher speeds; Thesesupplemental feeding devices have not"'been entirely satisfactoryhowever, because of the failure of the valve to act regularly Yat allspeeds'and consequently the failure of Vthe supplemental devices toproduce a uniform mixture. Various attempts have been made to secure aregular movement of the-valve, themost common device being the dash-pot,but while these devices have improved the operation of the Supplementalfeeding device they have n ot entirely overcome the ditliculty and areopen to various objections.

.The object of the present invention is to provide a. carbureter with asupplemental' feeding deviceiwhich willloe regular Yin its action andW-ill deliver a uniform nnxtare To vthis `end it is a further object ofthe invention toprovide a suction operated air valve with means forcausing a regular movement thereof atl all speed conditions.

' Where It also an object of lthe invention to combine with euch au airvalve a supplemental valve controlled gasolcne nozzle which will becontrolled by the movement of the air valve It is also an object of thcinventiOn to provide a. device of this kind which-will he very simple inits construct-ion and its opera tion and which can he easily kent cleanand in an ellis-lent ope 'ating' condition, and which can be manufactund at a lou' cost.

It is also an object of the invention to provide improved means formounting the valve which ('oiatiois the liov of gasolene to thecarhureter. l 1n the. aoco upanying drawings Iiigure l rs a. vert-ical`sectional vview taken centrallyr through a` carbureter embodying in vinvention;A Fig. Si is a` sectional view taken on Patented. uff. 13,1918.

the line ,ai-a1- of Fig.- l: Fig. 3 is a sec tional view takenon theline z/j/ ot' Fig. 1 Fig. 4 is a. perspective.detail view ot' VAthe airvalve and the controlling means therefor: and Fig.4 5 is afpcrspectivedetail view ot' the `main gasolene nozzle. f In these drawings l haveillustrated one. limbodiment of my invention and have shown the sameasapplied to a carhurctec of a well known type, the main features ofconstrl-iction of which forni no part of the xpresert invention except?Jin so. far as ,they may' enter int-o combination with `the tea- -tureswhich I have vadded tothe carinii-eter. The particular carlmreter` hereshown is of that type known as the concentric lloattype and utilizes aheated air supply, ybut it will be understood that' the invention isapplicable to carbureters of various kinds'and that. the presentembodiment of the. inven- .ion is shown for-the purpose of illustrationonly` and it will he ialso understood that' the terni gasolene ishereinusedas indicating any suitable fuel with which the carbureter willoperato. the carbureterrhere shown being designed `for gasolene.

l The carbureter here 4shown comprises a casing 1 adapted to he securedto an explosive engine and having an interior passage-'- way 2 adaptedto communicate with the. in'- take of the engine. When used with theordinary automobile engine the device yis usually mounted so that-thepassa geway will communicate with the intake manifold. Ar,-

4 conduit 5 .gasolene therein.

tle valve or butterfly, 3. Secured to the casing 1. beneath thepassageway 2, is a gasolene receptacle, here shown in the form of a bowl4, having a laterally extending provided with a nipple 6, by.

means of which it may be connected with a -suitable source ot gasolenesupply. The

gasolene may be fed to the receptacle by to have free swinging movementto enable it vto accommodate itself to the movement of the lever. Inorder to provide this free movement of the valveand to render the sameadjustable, I have threaded into the end of the lever 8 a Stud 10 havinga substantially spherical socket 11 in which is mounted a ball 12carrying the valve 9.

After the ball has been seated in the4 socket, -the edges of the socketare drawn about the same to s0 reduce `the opening as to permanentlyretain the ball within the socket, thus providing a very strongconnection between the valve and its supporting device and one whichWil] at all times permit of a free swinging movement of the valve.

The gasolene is fed from the receptacle L to the passageway 2 by causinga .current of air 4to pass about the end of a nozzle which communicareswith the gasolene receptacle,

- in the well known manner, As here shown,

fio

a tube 13, such as is commonly known as a choke tube, is screw-threadedinto an opening in the casing 1 and 1s 1n open4 communi- -cation withthe'passageway 2.- The lower endl of the tube 13 is mounted in anopening in the bottom of the gasolene receptacle 4 and is in opencommunication with a suitable source-'of air supply. This source. of airsupply may be of any suitable kind, such as open communication with theatmosphere, but the present carbureter is designed for use with a heatedair supply and to this end an air conduit 14 is secured to thecarbureter in, open communication with the air tube 13 and leads-to asuitable air heater. The choke tubehas the usual restricted portionbetween its ends and is iiared toward the passageway 2. Extendingthrough the restricted portion of the tube and into the flared dischargemouth thereof is a' nozzle 15 ,which is carried by a spider,'or crossarm, 16, mounted in the lower end of the tube 1 and which communicatesby means of a conduit 17` with the interior' of the gasolene receptacle.'This the suction .created in the passageway by the mel-ation of theengine will draw a supply way 2.- Preferably 4these of air through thechoke tube and past the end of the nozzle 15 thereb causing gasolene tobe drawn from -t'ie 4receptacle 4 lneedle'valve 1,8, at a point near itspoint-of connection withthe' cross arm 16. This valve is mounted in anextension 19 projecting downwardly `from the cross bar 16 and having aninterior opening screw-threaded to receive the screw-threaded stem ofthe needle valve, this stem extending beyond the end of the extension 19and having a handle 2O by means of which thcvalve may be manipulated.The extension 19 extends through a projection beyond the air conduit 14and has its exterior surface screwthreaded to receive a nut 21 by meansof which the Several parts ofthe carbureter are clamped together. Itwill be notcdthat the .float 7 is ring-shaped in construction and isarranged concentrically of the air tube.

The main features of the carbureter so far described are well known 1nthe art and when the nozzle is adjusted for low speeds,

the increased suction created by high speeds of the engine will, asheretofore explained, result in the production of too rich a mixture. 'Ihave therefore provided a Vsupplemental feeding device whieh may feedeither' air alone or which may feed both air and gasolene. To this end Ihave provided an additional air-opening leading to the passageway 2. Inthe present construction the casing 1 is provided with a lateral.extension 22 having therein a chamber which is in open communicationwith the passageway 2 and -is provided at its outer-end'wth anair-opening. This air-opening is controlled by a valvearranged to beopened by the suction created in the passageway 2, when this suctionexceeds a certain predetermined point. lAs here shown the valve, whichis shown at 23, is mounted within the chamber inthe extension 22 'of thecasing 1 and has an annular portion provided with a flat exteriorsurface to engage a valve Seat formed The valve 23 is proline' ofmovement of\the val ve towardits open position, that-is, toward thepassagesurfaces are formed by providing the valve with a'conel shapedportion 26, which is here shown as formed integral with the annular seatencasing and has a head 25 by means of which `it may. be adjusted.vided' with surfaces converging along lthe Lemeeo gngiug poi-Lionthereofw vThis eene shaped porlioii el' the vs l ve preferablyterminates in :i iwylilnliienl portion 2T which is tnhnlnr in musliuelimn lor mrposes which. will herenm- :r .er Milieux'. lf1i;'ierntingwith thevelve so hold the seine nornnilly 'in engagement wiehils "enf: und to oll'er progressively increasing rl snee lo the movementof the saine to wu rd its fully open position is e resilient de rie-eeeniprisiny s plurality of parte, such es the resilient ,lingers 28,:n1-ranged to beer against Athe converging surfaces olf the valves andto be spread apart by these surfaces es the vulve moves toward thepassageway 2. The resilienlade'vioes, or lingers, 28, may be mounted inany suitable manner and may be of :my suitable number, but es here shownthere three resilient fingers and they are moulded el; ih ,ir inner endsin n eolhir5 or 1`1ng,-Qll, nil-deh mounted Ain the exl'ension 253 ofthe easing' und, set against; n "houlijler 'loi-ined el; the inner endthereof. Vl'lris solo sliruetion 'n'mbles the fingers lie fifonverggeshnrply "en'erd labo smaller normen of the eens G end lio heer 'eg/annstlne seine .sn

n nii-:meer ce hold the sali ilrinljf on ills eene The in: nids el 'ellei.' lienl,4 :l ere prelferably er ed Le forni n. smoo'h siding contentwith the eene. While l prefer to form the eene on the valve end to mountthe resilient engaging devices Within the easing,i this not essentilil'lo the operetion of the device, as e reversal or other reerrsngement ofthe positions might; be made end more or less sntie'lfnotory resultssecured. .le will be appareil?, that the Valve Wlll be held nory l mellyon i.

.sent rind that when che suction Wil-hin the passageway 2 becomes sogreet lo ever-:3 ne'lfhe resiste-nee of she spring; lingers iil'e mlvewill npr and the suc tion incr liner sind fui ller sway from its sent,athus inel L oil the opening?, bnl; the snetiol'l increases and -thevalve moves farther end. lertherfrom its sont, the resist ence elle red.to the movement becomes greater :ind grex-ile Hence ,it moves uniformlyand regularly with changes of speed of the en gine fter the suctionbecomes greet enough to 'unseat it.

In the present device l vhave provided. menne lor feeding a.supplemental supply of gnsolene to the passageway al high speeds of theengine. To eeeomplsh this l have provided e supplemental nozzle orfeeding lube 3() 'which is here shown as arranged substantiallycentrally of the chamber in the extension 22 and mounted in n sockel: 31secured to and preferably formed integral with the ring, or collar, 29,which. Carries n heed Ll() eurried b v the stem il?.

fthe gewinne rem-pluche l. The is wlw. rroulwillrrl :1nd io lllis ond ilis provided willi :1 during ond 2li which forms :l mire seniv lo receive:rmlvr member 34" wl'iirh is inversely lepel-od und is provided with :lslum il? ivllirli. exl'ruds lliroug'n e. redwood openingV Sill si. l'liemiler eud ol." [he vulve seni, und serres lo lguide l'he Valve in ,itsmoven'ienf toward V:ind nelly from iis Senf. The nozzle, or lube 'll: isprovided nl. n, poinl` beyond ille redlufml opening' 38 witl'r nuenlarged opening @.clzenrlinglr lel'igri'ln wise thereon throi'ln'h'which the vulve sioni 37 extendshud within which is coiled nspring' 3S)which beurs :it one end against n shoulder formed nl', he inner end nll'lie opening in the lube, nt the other und against',

end, el' lhr nozzle. or lube. E30; is open so .that lhe head l0 ol thevulve siren] ex posed and nmjf be eugngejfu'l lo nrlunte The Valve. Thiszmlunlioia ol"v llu=l wlw is prei'- ernbly :1r-,compl"lied lo." llerinorenieul, el the unive *l z o will rnd the li( llr,rw rylirnlrirnl'portion been slmiwd n'. lil' about ille inl-w Ill? willi n sliding n'and lseiner und el l'llis cylind'rirnl gjlorlion oi Alle valve hns beennovided with u boss'l'l inlowliirll is screw-illreaulled n. stud 42having' its inner end projecting 'into he hollow riflindriml pori-ionel' lhe nir valve end ndnpled lo euler the open end of lie muzzle.V ortullen ilk and engelen the heed of the 'rallye stein il?. fl`l1is serew'tlu'rzulml stud :is provided nl' its outer end with e knurled hondI'-l---B by ineens ol: which il, may be ni'ljuslnd und e spring ll beursngnins 'the seine to ollfrer lrielionnl resisl :mee lo ils movement sindillus prerenl' :in :irriden'lnl disl'urlmuee of its mljusl'menl. ll willbe apparent llinl. zu lhe nir vul-e ".l mores lowlrd ils fully openpos-lil iou l'h'e .sl-ud -ll will engiigre file sl'mn ol! the`h`Onseleno Valve 2556 and open the nozzle to nu extent corresponding;-lo the nir opening, thus per mill-.ing the gnsolene lo be drnwn throughthe nozzle into l'he passageway The een neotion betweenthe nir valve andl'hevnlve controlled nozzle nmry beso adjusted that the gnsolene nozzlewill be opened nt the 'firstI movement of the nir vnlve ewa-y from itsseat `or it may be so Adjusted that: the nozzle will 'not be openeduntil lille nil' Valve has moved e distance sufficient to provide an niropening of va. predetermined size. The timing of the opening of thenozzle with seenred by adjusting the screw-threaded stud 49. In additionto this nljnshinenlI the speedj 0r suction,l et which the vnir valvewill open may be ladjusted by altering the position of the eollasrlwhich forms e', sent for the air Valve. This colla-r -mey be secured inits adjusted position in any suitable manner, but preferably, I splitthe outerJ nozzle .fill

ola' the nir i'nlvr has l into position.

end of the extension 22 of the casing and Aprovide the same with lugs 45through which ward the inner portion of said valve and lnwiigtheir innerends arranged to normally extends' a clamping screw 46 which servesjdr'iigagethc converging surfaces of said valve draw the split end of thecasing tightly about the collar and secure the latter firml Theoperation of the device will be readily understood from the foregoingdescription and it Willbe apparent that I have provided means forvautomatically feeding a supplemental supply of air or of air andNvgasolene to the engine which will be con' trolled by the speed at whichthe engine is operated and which will be of such a character that themovement of the controlling valve will be regular and uniform withchanges of speed thus furnishing a proper quantity of air and enabling amixture. of aproper richness to be maintained at all speeds. i

Further it will be apparent-that the deviee is very simple in itsconstruction; that it has no complicated adjustments or delicato partswhich are liable to be broken or disarranged or to beeomeelogged bydii-tor corrosion.

l'Vhile l have. shown and described one eni liodiment of my invention lwish it to be understood. that .l do notl desire to be limited' lo thedetails of construe-tion as obvious modifications will occur to a personskilled in the art. A For exauiple'lhe lateral extensin to 4the casingis here shown as of a length great enough to iiiclose the. air valve,the gasoleno nozzle. and the lcopeiating devices. Obviously thesedevices need not all bo mounted in the extension, and. particularly whenthe air valve used without the supplement-al gasolene nozzle, theeXtension may be shortened until it projects little, vit' any, beyondthe side ,of theinain casing1 it being only necessary that ay valve seatshould be provided with whirlrthe air valve may cooperate. The resilientlingers and guides may be, mounted on the easing in any su1table manner.l

Having now fully described my invention, what I elaiin as new, and wishto'seci'ire by Letters Patent, is:- l

1. In' a carbureter having a' passageway A leading to the intake of anengine and having an air opening conimnnicatingwith said passageway, avalve-to control said air opening, said valve being arrangedto beopened' by the suction in said passageway and havp' ing surfacesconverging in the. direction ottw its openiiig movement, and resilientfingers acting on said surfaces ,to resist the moveve-toward its fullyopenfo-` tion. 2.l In a carbureter having an air opening provided with'a va'l-veseat, a valvenormally inengagement with said seat and havingsur faces converging away from Said seat, and a plurality of resilientfingers converging toand to ride over the same as said valve moves awayfrom its seat.

v3. ln a-cabureter, a casing having a passageway leading to the intakeof an engine and communicating with Va main source of air and fuelsupply, and also having a suppleinental air op ning extending laterally`fromr said passageway and communicating therewith1` an inwardly openingvalve to control said suppl'enielitfdl fll 'OP'll'llg Sadvalve havingconverging surfacesextend:v ing transversely to said passageway, andresilient lingers carried by said casing andv extending transversely tosaid passageway to engage said converging surfaces of said valve andresist the'mwement of said valve toward its open position. 85

Lil. l'n a carbureter, a casing having a laterally extending portionhaving its outer end open and provided with a valve seat. a valvemounted in said extension to engage said valve seat and havingsurfaces.converging away from said valve seat', a. collarinounted insaid easing at a point remote from said valveseat,A and resilientdevices carried by said collar and arranged to engage the convergingsurfaces ot' said valve to resist the' 95 movement of tlie'latter awayfrom its seat.

5. In a earbureter, a easing having a laterally extending'poi'tionhaving its outer end open and provided with a valve seat, a valvemounted in said extension to engage saidlOD valve' seat and havingsurfacesconverging away from said 'valve seat, a collar mounted in saideasing at a point remote f roni said valve` seat, and a series ofresilient fingers i'igidlv secured to said collar and spaced 105 aboutthe saine, said fingers converging to ward said valve and having theirinner ends curved to provide slid-ing Contact. with the converingsurfaces of said valve menilier. i

(i. ln a earliuieter, a 'casing having a laterally extending opening andhavingr a valve seat surrounding said opening, an inwardly opening valvein said easing' to engage Said valve seat, said valve having acone-shaped portion extending away from the valve seat,

a supporting struetur4 mounted i'n said easing in aliuement with saidopening and resilientv devices carried by said. structure tos engage theeonesliaped portion of said valve 120 to resist its inward movement,said sup-- iorting sirurlure and vsaid valve having parts eoperaliiiigto guide the valve in v.its lliovement toward and from ils seat.

7. ln, a earliureter eomprising a czsing provided with an extension openat one endl and having a valve seat,surrouinling-said opening, a valvemounted in said .exlension to engage said valve seat, said valve havingal cone shaped port-ion extending away t'roin 13u Sii-id vulve sentnndnino having on opening' arranged. nt the apex of Suid cone, n. eollznniolniiod :it n poini remoto ironi said valve sont :ind :i port carriedhy` said collar io enter the opening' in Suid @one und forni. zi. guideiherofor. mid resilient device4 n'ionntod on sind rrollm' und. wrongedto engage Suid cone to resist the movement of said valve away .from saidseat.

Sl In a devil'v of the vlnlrneim.' described, a :nsing having :1.interni extension. open :it ite outer end and provideifl with :l vulveSent adjacent to Huid onivr ondv` nn inwardly opening vii-ive movablelengthwiee 'l Suid exten sion toengage Said sent and control the peemgeofgiii' through Suid extension. n gasolene nozzleinounted :it l'heinnerend of said extension, in line with said zur opening, n valveto controlsaid nozzle. 'un operative Conner-.tion bel'nen Sli-id vnlverl, andreeilient devienemourned on Suid cash g near the inmei; .end ot .Quidextensonenii arranged to resist' the. -inward movement of said firstnientioned valve.

9. In n device of thechractwr described, a easing having n lateralextension open at one end and 'provided with alvnlv'e seat, a valvemounted in the extension 'of seid ons ing `'and having Surfacesconverging away from "Said valve Sent, a collar n ounted at a point'remote from sai d valve stat, 'resilient devices carried by stud Collarto engage the converging urfeoes of Said valve, a supple mental gaolene'nozzle carried by said eollnr, a. valve to control said nozzle, andmeans Carried by Said air valve to aetnute the lstlneniion'ed valve to'open said gasolene nozzle.

10. In a, device of lthe character described, n. easing having n lateralextension open at one end and. provided 'with n velve Seat, a,vnlverhaving nn annular portion to engage 'seid vflvefseal and lim/ing nhollow cylindricajl lportion connected With'snid annular portion byconverging Surfaces, n oollnr mounted :1t a point renoto from said valvesont, resilient devices carried b v said coll-tr r1nd 'engaging `said'converging surfaces to resist the movement 'ot said valve aWn'y froin.iin seat, a supplemental gasol'ene nozzle earried' by said lCollar andhaving a portion eX- tending into the' hollowr Cylindrical portion ofsaid valve to forni -agnide for the latter, :1- sprin-g :letnttedvnlveto control said gasolene nozzle having,r n stem, :and n partent'-riod by S'nid ni '."vnlve to engage said Stern and intente Said last-menl.i'oned valve to `open szi'id nozzle. r

11. In :1. device of the character described, a easing having. n lateralextension open at one end and provided with a valve seat, o valvehavingnn annular portion to engage said valve Seat and having a hollowcylindrical portioi connected with said annular portion by. convergingsurfaces, a collar letter, it spring nelnniod vulve to Qontrol Suidgosolene nozzle having' :i stem, and :in mljuetnhle port carried bySunil nir vulve to engage sind :dem :1nd :lcfinil'o Held inet-[noirtioned vnlvoio open Suid nozzle.

ln :i devieenol' the elnxrmzter described, :i easing having n interniextension open :it one end and provided with :i vulve sont sur rounding"seid opening, Ia volvo having :xn

nnnnlnr portion to engage said vulve sent.

und :i cone shaped portion terinirniting in ai` hollow eyliinlrionlportion :it 'its inner ond, n collez' mounted nt n point remote fromSaid valve sent, reeilient devices married by Said onlinr to engage theeene Shaped portion of said valve to resist' its movement from itslsont, said'oollar having n redini Urin7 a Suppleznentnl gnleolene nozzleenppor :i by seid arm and havin. :L- art oxtendiir into the C) hollowportion oi? said valve to forni :L guide for the hittert u. vzilve 'tocontrol Seid gesolene nozzle having n stein lornetuating the same, :Lspring net-ing on said Stena. to hold said valve normally sented, and :tstud adjnstably mounted. on Said nir valve and :1rrenged izo engage saidStern to netnate said lmtnieni'ioned valve to open Said gneolene nozzleas Said air valve :n'iovoe mvay from .its seat.

i3` lnmj device of the charentes# described:` :i easing having n.lateral oxteneion open :it one end sind provided with, :L vnlve sentS1112 rounding seid opening. et valve arranged to engage Said valvesea-t, :t elipljilen'lental, valve controlled, gneolone nozzle` :tStructure mounted Within .Cz-aid extension. to support said noz-:ale` anoperative eonne'etion between said nozzle' and said dir valve to causethe nozzle to be opened :is seid nir valve moves may from its Sent, Suidnir valve and seid supporting structure having cooperating parte tocontrolV the movement of Said valve, said` parte eonnbrising a conecarried by one of Suid members :1nd resilient devices earried by theother of Said members'and arranged to engage said Cone to resist themovement of aid nir valve.

14. In n device of the character described, n easing having :inextension at one end and provided with n valve nenta a valve to engagesaid seat, a supplemental gasolene noz? zle`v supporting structuremounted in said nozzle, said arm having a conduit leading to structureand snid air valve having eoper ating parts to reslst the movemnt oflsaid .extension and having` an arm to Support said :t source ofgasolene Supply, said support-lng i valve, said parts comprising a conesecured to one end of said vmembers and resilient lingers' secured tothe other of said members and arranged to engage said cone as said valvemoves away from its scat.

15. In a carbureter, a supplemental feed- A ing device comprising an airvalve having surfaces converging in the direction of its nlm-'ement'toward its open position, and resilient fingers converging toward saidvvalve and having their ends arranged to engage the converging surfacesof' said valve to rev sist its movement toward its fully open poAsition.

mental valve-controlled gasolene nozzle, a structure mounted within saidcasing to 'support said nozzle inaxial alinement with said opening, anoperative connection between the valve of said nozzle and said air valveto cause the nozzle to be opened as said .air valveV moves away fromsaid seat, said air valve and said supporting structure havingcooperating parts to control tl^e movements of said air valve, saidparts comprising a cone carried by one of said members,l and resilientdevices carried by the other of said members, and arranged to. en-

gage said cone to resist the movement ofsaid air valve.

In testimony whereof I aix my signature hereto. 1

oHAs. D. SMI'Tn.

